diff --git a/gns3server/controller/project.py b/gns3server/controller/project.py
index 34ec7bba..961eaf97 100644
--- a/gns3server/controller/project.py
+++ b/gns3server/controller/project.py
@@ -44,11 +44,12 @@ class Project:
     :param status: Status of the project (opened / closed)
     """
 
-    def __init__(self, name=None, project_id=None, path=None, controller=None, status="opened", filename=None):
+    def __init__(self, name=None, project_id=None, path=None, controller=None, status="opened", filename=None, auto_start=False):
 
         self._controller = controller
         assert name is not None
         self._name = name
+        self._auto_start = False
         self._status = status
         if project_id is None:
             self._id = str(uuid4())
@@ -81,6 +82,10 @@ class Project:
         # Create the project on demand on the compute node
         self._project_created_on_compute = set()
 
+    @property
+    def auto_start(self):
+        return self._auto_start
+
     @property
     def controller(self):
         return self._controller
diff --git a/gns3server/controller/topology.py b/gns3server/controller/topology.py
index 0bde0721..2deb1aa4 100644
--- a/gns3server/controller/topology.py
+++ b/gns3server/controller/topology.py
@@ -17,6 +17,8 @@
 
 import json
 import jsonschema
+import uuid
+import shutil
 import aiohttp
 
 from ..version import __version__
@@ -47,6 +49,7 @@ def project_to_topology(project):
     data = {
         "project_id": project.id,
         "name": project.name,
+        "auto_start": project.auto_start,
         "topology": {
             "nodes": [],
             "links": [],
@@ -77,12 +80,294 @@ def load_topology(path):
     """
     Open a topology file, patch it for last GNS3 release and return it
     """
+    log.debug("Read topology %s", path)
     try:
         with open(path) as f:
             topo = json.load(f)
     except OSError as e:
         raise aiohttp.web.HTTPConflict(text="Could not load topology {}: {}".format(path, str(e)))
-    if topo["revision"] < GNS3_FILE_FORMAT_REVISION:
-        raise aiohttp.web.HTTPConflict(text="Old GNS3 project are not yet supported")
+    if "revision" not in topo or topo["revision"] < GNS3_FILE_FORMAT_REVISION:
+        # If it's an old GNS3 file we need to convert it
+        # first we backup the file
+        shutil.copy(path, path + ".backup")
+        topo = _convert_1_3_later(topo)
+        with open(path, "w+") as f:
+            json.dump(topo, f)
+    elif topo["revision"] > GNS3_FILE_FORMAT_REVISION:
+        raise aiohttp.web.HTTPConflict(text="This project is designed for a more recent version of GNS3 please update GNS3 to version {} or later".format(topo["version"]))
     _check_topology_schema(topo)
     return topo
+
+
+def _convert_1_3_later(topo):
+    """
+    Convert topologies to the new file format
+
+    Look in tests/topologies/README.rst for instructions to test changes here
+    """
+    new_topo = {
+        "type": "topology",
+        "revision": GNS3_FILE_FORMAT_REVISION,
+        "version": __version__,
+        "auto_start": topo.get("auto_start", False),
+        "name": topo["name"],
+        "project_id": topo["project_id"],
+        "topology": {
+            "links": [],
+            "drawings": [],
+            "computes": [],
+            "nodes": []
+        }
+    }
+    if new_topo["project_id"] is None:
+        new_topo["project_id"] = str(uuid.uuid4())  # Could arrive for topologues with drawing only
+    if "topology" not in topo:
+        return new_topo
+    topo = topo["topology"]
+
+    # Create computes
+    server_id_to_compute_id = {}
+    for server in topo.get("servers", []):
+        compute = {
+            "host": server.get("host", "localhost"),
+            "port": server.get("port", 3080),
+            "protocol": server.get("protocol", "http")
+        }
+        if server["local"]:
+            compute["compute_id"] = "local"
+            compute["name"] = "Local"
+        elif server.get("vm", False):
+            compute["compute_id"] = "vm"
+            compute["name"] = "GNS3 VM"
+        else:
+            compute["name"] = "Remote {}".format(server["id"])
+            compute["compute_id"] = str(uuid.uuid4())
+        server_id_to_compute_id[server["id"]] = compute["compute_id"]
+        new_topo["topology"]["computes"].append(compute)
+
+    # Create nodes
+    ports = {}
+    node_id_to_node_uuid = {}
+    for old_node in topo.get("nodes", []):
+        node = {}
+        node["console"] = old_node["properties"].get("console", None)
+        node["compute_id"] = server_id_to_compute_id[old_node["server_id"]]
+        node["console_type"] = old_node["properties"].get("console_type", "telnet")
+        node["name"] = old_node["label"]["text"]
+        node["label"] = _convert_label(old_node["label"])
+        node["node_id"] = old_node.get("vm_id", str(uuid.uuid4()))
+        node["symbol"] = old_node.get("symbol", None)
+        node["x"] = int(old_node["x"])
+        node["y"] = int(old_node["y"])
+        node["z"] = int(old_node.get("z", 1))
+
+        node["properties"] = {}
+
+        if old_node["type"] == "VPCSDevice":
+            node["node_type"] = "vpcs"
+        elif old_node["type"] == "QemuVM":
+            node["node_type"] = "qemu"
+            if node["symbol"] is None:
+                node["symbol"] = ":/symbols/qemu_guest.svg"
+        elif old_node["type"] == "DockerVM":
+            node["node_type"] = "docker"
+            if node["symbol"] is None:
+                node["symbol"] = ":/symbols/docker_guest.svg"
+        elif old_node["type"] == "ATMSwitch":
+            node["node_type"] = "atm_switch"
+            node["symbol"] = ":/symbols/atm_switch.svg"
+            node["console_type"] = None
+        elif old_node["type"] == "EthernetHub":
+            node["node_type"] = "ethernet_hub"
+            node["symbol"] = ":/symbols/hub.svg"
+            node["console_type"] = None
+            node["properties"]["ports"] = []
+            for port in old_node["ports"]:
+                node["properties"]["ports"].append({
+                    "name": "Ethernet{}".format(port["port_number"]),
+                    "port_number": port["port_number"]
+                })
+        elif old_node["type"] == "EthernetSwitch":
+            node["node_type"] = "ethernet_switch"
+            node["symbol"] = ":/symbols/ethernet_switch.svg"
+            node["properties"]["ports"] = []
+            node["console_type"] = None
+            for port in old_node["ports"]:
+                node["properties"]["ports"].append({
+                    "name": "Ethernet{}".format(port["port_number"]),
+                    "port_number": port["port_number"],
+                    "type": port["type"],
+                    "vlan": port["vlan"]
+                })
+        elif old_node["type"] == "FrameRelaySwitch":
+            node["node_type"] = "frame_relay_switch"
+            node["symbol"] = ":/symbols/frame_relay_switch.svg"
+            node["console_type"] = None
+        elif old_node["type"] in ["C1700", "C2600", "C2691", "C3600", "C3725", "C3745", "C7200", "EtherSwitchRouter"]:
+            if node["symbol"] is None:
+                node["symbol"] = ":/symbols/router.svg"
+            node["node_type"] = "dynamips"
+            node["properties"]["dynamips_id"] = old_node["dynamips_id"]
+        elif old_node["type"] == "VMwareVM":
+            node["node_type"] = "vmware"
+            if node["symbol"] is None:
+                node["symbol"] = ":/symbols/vmware_guest.svg"
+        elif old_node["type"] == "VirtualBoxVM":
+            node["node_type"] = "virtualbox"
+            if node["symbol"] is None:
+                node["symbol"] = ":/symbols/vbox_guest.svg"
+        else:
+            raise NotImplementedError("Conversion of {} is not supported".format(old_node["type"]))
+
+        for prop in old_node["properties"]:
+            if prop not in ["console", "name", "console_type", "use_ubridge"]:
+                node["properties"][prop] = old_node["properties"][prop]
+
+        node_id_to_node_uuid[old_node["id"]] = node["node_id"]
+        for port in old_node.get("ports", []):
+            ports[port["id"]] = port
+        new_topo["topology"]["nodes"].append(node)
+
+    # Create links
+    for old_link in topo.get("links", []):
+        nodes = []
+        source_node = {
+            "adapter_number": ports[old_link["source_port_id"]].get("adapter_number", 0),
+            "port_number": ports[old_link["source_port_id"]]["port_number"],
+            "node_id": node_id_to_node_uuid[old_link["source_node_id"]]
+        }
+        nodes.append(source_node)
+
+        destination_node = {
+            "adapter_number": ports[old_link["destination_port_id"]].get("adapter_number", 0),
+            "port_number": ports[old_link["destination_port_id"]]["port_number"],
+            "node_id": node_id_to_node_uuid[old_link["destination_node_id"]]
+        }
+        nodes.append(destination_node)
+
+        link = {
+            "link_id": str(uuid.uuid4()),
+            "nodes": nodes
+        }
+        new_topo["topology"]["links"].append(link)
+
+    # Ellipse
+    for ellipse in topo.get("ellipses", []):
+        svg = '<svg height="{height}" width="{width}"><ellipse cx="{cx}" cy="{cy}" fill="{fill}" fill-opacity="1.0" rx="{rx}" ry="{ry}" {border_style} /></svg>'.format(
+            height=int(ellipse["height"]),
+            width=int(ellipse["width"]),
+            cx=int(ellipse["width"] / 2),
+            cy=int(ellipse["height"] / 2),
+            rx=int(ellipse["width"] / 2),
+            ry=int(ellipse["height"] / 2),
+            fill=ellipse.get("color", "#ffffff"),
+            border_style=_convert_border_style(ellipse)
+        )
+        new_ellipse = {
+            "drawing_id": str(uuid.uuid4()),
+            "x": int(ellipse["x"]),
+            "y": int(ellipse["y"]),
+            "z": int(ellipse.get("z", 0)),
+            "rotation": int(ellipse.get("rotation", 0)),
+            "svg": svg
+        }
+        new_topo["topology"]["drawings"].append(new_ellipse)
+
+    # Notes
+    for note in topo.get("notes", []):
+        font_info = note["font"].split(",")
+
+        if font_info[4] == "75":
+            weight = "bold"
+        else:
+            weight = "normal"
+        if font_info[5] == "1":
+            style = "italic"
+        else:
+            style = "normal"
+
+        svg = '<svg height="{height}" width="{width}"><text fill="{fill}" fill-opacity="{opacity}" font-family="{family}" font-size="{size}" font-weight="{weight}" font-style="{style}">{text}</text></svg>'.format(
+            height=int(font_info[1]) * 2,
+            width=int(font_info[1]) * len(note["text"]),
+            fill="#" + note["color"][-6:],
+            opacity=round(1.0 / 255 * int(note["color"][:3][-2:], base=16), 2),  # Extract the alpha channel from the hexa version
+            family=font_info[0],
+            size=int(font_info[1]),
+            weight=weight,
+            style=style,
+            text=note["text"]
+        )
+        new_note = {
+            "drawing_id": str(uuid.uuid4()),
+            "x": int(note["x"]),
+            "y": int(note["y"]),
+            "z": int(note.get("z", 0)),
+            "rotation": int(ellipse.get("rotation", 0)),
+            "svg": svg
+        }
+        new_topo["topology"]["drawings"].append(new_note)
+
+    # Rectangles
+    for rectangle in topo.get("rectangles", []):
+        svg = '<svg height="{height}" width="{width}"><rect fill="{fill}" fill-opacity="1.0" height="{height}" width="{width}" {border_style} /></svg>'.format(
+            height=int(rectangle["height"]),
+            width=int(rectangle["width"]),
+            fill=rectangle.get("color", "#ffffff"),
+            border_style=_convert_border_style(rectangle)
+        )
+        new_rectangle = {
+            "drawing_id": str(uuid.uuid4()),
+            "x": int(rectangle["x"]),
+            "y": int(rectangle["y"]),
+            "z": int(rectangle.get("z", 0)),
+            "rotation": int(ellipse.get("rotation", 0)),
+            "svg": svg
+        }
+        new_topo["topology"]["drawings"].append(new_rectangle)
+
+    return new_topo
+
+
+def _convert_border_style(element):
+    QT_DASH_TO_SVG = {
+        2: "25, 25",
+        3: "5, 25",
+        4: "5, 25, 25",
+        5: "25, 25, 5, 25, 5"
+    }
+    border_style = int(element.get("border_style", 0))
+    style = ""
+    if border_style == 1:  # No border
+        return ""
+    elif border_style == 0:
+        pass  # Solid line
+    else:
+        style += 'stroke-dasharray="{}" '.format(QT_DASH_TO_SVG[border_style])
+    style += 'stroke="{stroke}" stroke-width="{stroke_width}"'.format(
+        stroke=element.get("border_color", "#000000"),
+        stroke_width=element.get("border_width", 2)
+    )
+    return style
+
+
+def _convert_label(label):
+    """
+    Convert a label from 1.X to the new format
+    """
+    font_info = label["font"].split(",")
+    style = "font-family: {};font-size: {};".format(font_info[0], font_info[1])
+    if font_info[4] == "75":
+        style += "font-weight: bold;"
+    if font_info[5] == "1":
+        style += "font-style: italic;"
+    color = label["color"]
+
+    style += "fill: #" + color[-6:] + ";"
+    style += "fill-opacity: {};".format(round(1.0 / 255 * int(color[:3][-2:], base=16), 2))
+    return {
+        "text": label["text"],
+        "rotation": 0,
+        "style": style,
+        "x": int(label["x"]),
+        "y": int(label["y"])
+    }
diff --git a/gns3server/schemas/topology.py b/gns3server/schemas/topology.py
index 5a6dda8a..37025f43 100644
--- a/gns3server/schemas/topology.py
+++ b/gns3server/schemas/topology.py
@@ -41,6 +41,10 @@ TOPOLOGY_SCHEMA = {
             "description": "Type of file. It's always topology",
             "enum": ["topology"]
         },
+        "auto_start": {
+            "description": "Start the topology when opened",
+            "type": "boolean"
+        },
         "revision": {
             "description": "Version of the .gns3 specification.",
             "type": "integer"
diff --git a/tests/controller/test_topology.py b/tests/controller/test_topology.py
index 899c759a..db1f5af3 100644
--- a/tests/controller/test_topology.py
+++ b/tests/controller/test_topology.py
@@ -34,6 +34,7 @@ def test_project_to_topology_empty(tmpdir):
     assert topo == {
         "project_id": project.id,
         "name": "Test",
+        "auto_start": False,
         "revision": 5,
         "topology": {
             "nodes": [],
@@ -106,11 +107,15 @@ def test_load_topology_file_error_schema_error(tmpdir):
         topo = load_topology(path)
 
 
-def test_load_old_topology(tmpdir):
+def test_load_newer_topology(tmpdir):
+    """
+    If a topology is design for a more recent GNS3 version
+    we disallow the loading.
+    """
     data = {
         "project_id": "69f26504-7aa3-48aa-9f29-798d44841211",
         "name": "Test",
-        "revision": 4,
+        "revision": 42,
         "topology": {
         },
         "type": "topology",
diff --git a/tests/test_topologies.py b/tests/test_topologies.py
new file mode 100644
index 00000000..f3450e4b
--- /dev/null
+++ b/tests/test_topologies.py
@@ -0,0 +1,111 @@
+#!/usr/bin/env python
+#
+# Copyright (C) 2016 GNS3 Technologies Inc.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+
+#
+# This will test the conversion from old topology format to the new
+#
+# Read tests/topologies/README.rst for documentation
+
+import os
+import json
+import pytest
+import shutil
+
+
+from gns3server.controller.topology import load_topology, GNS3_FILE_FORMAT_REVISION
+
+topologies_directory = os.path.join(os.path.dirname(os.path.realpath(__file__)), "topologies")
+
+
+def topologies():
+    dirs = []
+    for directory in os.listdir(topologies_directory):
+        if os.path.isdir(os.path.join(topologies_directory, directory)):
+            dirs.append(directory)
+    return dirs
+
+
+@pytest.mark.parametrize("directory", topologies())
+def test_convert(directory, tmpdir):
+    before_directory = os.path.join(topologies_directory, directory, "before")
+    after_directory = os.path.join(topologies_directory, directory, "after")
+
+    assert os.path.exists(before_directory), "No before directory found file for {}".format(directory)
+    assert os.path.exists(after_directory), "No after directory found file for {}".format(directory)
+
+    gns3_file = None
+    for file in os.listdir(before_directory):
+        if file.endswith(".gns3"):
+            gns3_file = file
+
+    assert gns3_file, "No .gns3 found file for {}".format(before_directory)
+
+    with open(os.path.join(before_directory, gns3_file)) as f:
+        before_topology = json.load(f)
+    with open(os.path.join(after_directory, gns3_file)) as f:
+        after_topology = json.load(f)
+
+    # We use a temporary directory for conversion operation to not corrupt our files
+    work_directory = str(tmpdir / "work")
+    shutil.copytree(before_directory, work_directory)
+
+    work_topology = load_topology(os.path.join(work_directory, gns3_file))
+    assert work_topology
+
+    if "revision" not in before_topology or before_topology["revision"] < GNS3_FILE_FORMAT_REVISION:
+        assert os.path.exists(os.path.join(work_directory, gns3_file + ".backup"))
+
+    # We should have the same file in after directory and the work directory
+    for root, dirs, files in os.walk(after_directory):
+        for file in files:
+            directory = os.path.relpath(root, after_directory)
+            file_path = os.path.join(work_directory, directory, file)
+            assert os.path.exists(file_path), "{} is missing".format(os.path.join(directory, file))
+
+            # For non .gns3 file we check if the file are the same
+            if not file_path.endswith(".gns3"):
+                assert os.stat(file_path).st_size == os.stat(os.path.join(os.path.join(root, file))).st_size, "File {} is different".format(os.path.join(directory, file))
+
+    compare_dict("/", work_topology, after_topology)
+
+
+def compare_dict(path, source, reference):
+    """
+    Compare two dictionnary of a topology
+    """
+    assert isinstance(source, dict), "Source is not a dict in {}".format(path)
+    for key in source:
+        assert key in reference, "Unexcepted {} in {} it should be {}".format(key, source, reference)
+    for key in sorted(reference.keys()):
+        val = reference[key]
+        assert key in source, "{} is missing in {}".format(key, source)
+        if isinstance(val, str) or isinstance(val, float) or isinstance(val, int) or isinstance(val, bool) or val is None:
+            if val == "ANYSTR":
+                pass
+            elif val == "ANYUUID" and len(source[key]) == 36:
+                pass
+            else:
+                assert val == source[key], "Wrong value for {}: \n{}\nit should be\n{}".format(key, source[key], val)
+        elif isinstance(val, dict):
+            compare_dict(path + key + "/", source[key], val)
+        elif isinstance(val, list):
+            assert len(val) == len(source[key]), "Not enough value in {} ({}/{}) it shoud be {} not {}".format(key, len(val), len(source[key]), val, source[key])
+            for idx, element in enumerate(source[key]):
+                compare_dict(path + key + "/", element, val[idx])
+        else:
+            assert False, "Value type for {} is not supported".format(key)
diff --git a/tests/topologies/1_5_builtins/after/builtins.gns3 b/tests/topologies/1_5_builtins/after/builtins.gns3
new file mode 100644
index 00000000..79a767f6
--- /dev/null
+++ b/tests/topologies/1_5_builtins/after/builtins.gns3
@@ -0,0 +1,197 @@
+{
+    "name": "builtins",
+    "project_id": "644e3892-4a50-4457-9601-2234d4842169",
+    "revision": 5,
+    "auto_start": false,
+    "topology": {
+        "computes": [
+            {
+                "compute_id": "local",
+                "host": "127.0.0.1",
+                "name": "Local",
+                "port": 3080,
+                "protocol": "http"
+            }
+        ],
+        "drawings": [],
+        "links": [],
+        "nodes": [
+            {
+                "compute_id": "local",
+                "console": null,
+                "console_type": null,
+                "label": {
+                    "rotation": 0,
+                    "style": "font-family: TypeWriter;font-size: 10;font-weight: bold;fill: #000000;fill-opacity: 1.0;",
+                    "text": "ATM1",
+                    "x": 6,
+                    "y": -25
+                },
+                "name": "ATM1",
+                "node_id": "ANYUUID",
+                "node_type": "atm_switch",
+                "properties": {
+                    "mappings": {
+                      "1:0:100": "10:0:200"
+                    }
+                },
+                "symbol": ":/symbols/atm_switch.svg",
+                "x": -398,
+                "y": -219,
+                "z": 1
+            },
+            {
+                "compute_id": "local",
+                "console": null,
+                "console_type": null,
+                "label": {
+                    "rotation": 0,
+                    "style": "font-family: TypeWriter;font-size: 10;font-weight: bold;fill: #000000;fill-opacity: 1.0;",
+                    "text": "HUB1",
+                    "x": 17,
+                    "y": -25
+                },
+                "name": "HUB1",
+                "node_id": "ANYUUID",
+                "node_type": "ethernet_hub",
+                "properties": {
+                    "ports": [
+                        {
+                            "name": "Ethernet1",
+                            "port_number": 1
+                        },
+                        {
+                            "name": "Ethernet2",
+                            "port_number": 2
+                        },
+                        {
+                            "name": "Ethernet3",
+                            "port_number": 3
+                        },
+                        {
+                            "name": "Ethernet4",
+                            "port_number": 4
+                        },
+                        {
+                            "name": "Ethernet5",
+                            "port_number": 5
+                        },
+                        {
+                            "name": "Ethernet6",
+                            "port_number": 6
+                        },
+                        {
+                            "name": "Ethernet7",
+                            "port_number": 7
+                        },
+                        {
+                            "name": "Ethernet8",
+                            "port_number": 8
+                        }
+                    ]
+                },
+                "symbol": ":/symbols/hub.svg",
+                "x": -176,
+                "y": -209,
+                "z": 1
+            },
+            {
+                "compute_id": "local",
+                "console": null,
+                "console_type": null,
+                "label": {
+                    "rotation": 0,
+                    "style": "font-family: TypeWriter;font-size: 10;font-weight: bold;fill: #000000;fill-opacity: 1.0;",
+                    "text": "SW1",
+                    "x": 20,
+                    "y": -25
+                },
+                "name": "SW1",
+                "node_id": "ANYUUID",
+                "node_type": "ethernet_switch",
+                "properties": {
+                    "ports": [
+                        {
+                            "name": "Ethernet1",
+                            "port_number": 1,
+                            "type": "access",
+                            "vlan": 1
+                        },
+                        {
+                            "name": "Ethernet2",
+                            "port_number": 2,
+                            "type": "access",
+                            "vlan": 1
+                        },
+                        {
+                            "name": "Ethernet3",
+                            "port_number": 3,
+                            "type": "access",
+                            "vlan": 1
+                        },
+                        {
+                            "name": "Ethernet4",
+                            "port_number": 4,
+                            "type": "access",
+                            "vlan": 1
+                        },
+                        {
+                            "name": "Ethernet5",
+                            "port_number": 5,
+                            "type": "access",
+                            "vlan": 1
+                        },
+                        {
+                            "name": "Ethernet6",
+                            "port_number": 6,
+                            "type": "access",
+                            "vlan": 1
+                        },
+                        {
+                            "name": "Ethernet7",
+                            "port_number": 7,
+                            "type": "access",
+                            "vlan": 1
+                        },
+                        {
+                            "name": "Ethernet8",
+                            "port_number": 8,
+                            "type": "access",
+                            "vlan": 1
+                        }
+                    ]
+                },
+                "symbol": ":/symbols/ethernet_switch.svg",
+                "x": 5,
+                "y": -206,
+                "z": 1
+            },
+            {
+                "compute_id": "local",
+                "console": null,
+                "console_type": null,
+                "label": {
+                    "rotation": 0,
+                    "style": "font-family: TypeWriter;font-size: 10;font-weight: bold;fill: #000000;fill-opacity: 1.0;",
+                    "text": "FR1",
+                    "x": 11,
+                    "y": -25
+                },
+                "name": "FR1",
+                "node_id": "ANYUUID",
+                "node_type": "frame_relay_switch",
+                "properties": {
+                    "mappings": {
+                      "1:101": "10:202"
+                    }
+                },
+                "symbol": ":/symbols/frame_relay_switch.svg",
+                "x": 294,
+                "y": -209,
+                "z": 1
+            }
+        ]
+    },
+    "type": "topology",
+    "version": "2.0.0dev1"
+}
diff --git a/tests/topologies/1_5_builtins/before/builtins.gns3 b/tests/topologies/1_5_builtins/before/builtins.gns3
new file mode 100644
index 00000000..24eac2a2
--- /dev/null
+++ b/tests/topologies/1_5_builtins/before/builtins.gns3
@@ -0,0 +1,204 @@
+{
+    "auto_start": false,
+    "name": "builtins",
+    "project_id": "644e3892-4a50-4457-9601-2234d4842169",
+    "revision": 4,
+    "topology": {
+        "nodes": [
+            {
+                "description": "ATM switch",
+                "device_id": "4fed7243-cd30-4e37-bdd4-d21ed9e65c03",
+                "id": 1,
+                "label": {
+                    "color": "#ff000000",
+                    "font": "TypeWriter,10,-1,5,75,0,0,0,0,0",
+                    "text": "ATM1",
+                    "x": 6.546875,
+                    "y": -25.0
+                },
+                "properties": {
+                    "name": "ATM1",
+                    "mappings": {
+                      "1:0:100": "10:0:200"
+                    }
+                },
+                "server_id": 3,
+                "type": "ATMSwitch",
+                "x": -398.5,
+                "y": -219.5
+            },
+            {
+                "description": "Ethernet hub",
+                "device_id": "40199896-fabd-42d8-9bca-4651a73159dd",
+                "id": 2,
+                "label": {
+                    "color": "#ff000000",
+                    "font": "TypeWriter,10,-1,5,75,0,0,0,0,0",
+                    "text": "HUB1",
+                    "x": 17.9765625,
+                    "y": -25.0
+                },
+                "ports": [
+                    {
+                        "id": 1,
+                        "name": "1",
+                        "port_number": 1
+                    },
+                    {
+                        "id": 2,
+                        "name": "2",
+                        "port_number": 2
+                    },
+                    {
+                        "id": 3,
+                        "name": "3",
+                        "port_number": 3
+                    },
+                    {
+                        "id": 4,
+                        "name": "4",
+                        "port_number": 4
+                    },
+                    {
+                        "id": 5,
+                        "name": "5",
+                        "port_number": 5
+                    },
+                    {
+                        "id": 6,
+                        "name": "6",
+                        "port_number": 6
+                    },
+                    {
+                        "id": 7,
+                        "name": "7",
+                        "port_number": 7
+                    },
+                    {
+                        "id": 8,
+                        "name": "8",
+                        "port_number": 8
+                    }
+                ],
+                "properties": {
+                    "name": "HUB1"
+                },
+                "server_id": 3,
+                "type": "EthernetHub",
+                "x": -176.0,
+                "y": -209.0
+            },
+            {
+                "description": "Ethernet switch",
+                "device_id": "96d18119-cc78-4129-9543-932f8b202d52",
+                "id": 3,
+                "label": {
+                    "color": "#ff000000",
+                    "font": "TypeWriter,10,-1,5,75,0,0,0,0,0",
+                    "text": "SW1",
+                    "x": 20.8359375,
+                    "y": -25.0
+                },
+                "ports": [
+                    {
+                        "id": 9,
+                        "name": "1",
+                        "port_number": 1,
+                        "type": "access",
+                        "vlan": 1
+                    },
+                    {
+                        "id": 10,
+                        "name": "2",
+                        "port_number": 2,
+                        "type": "access",
+                        "vlan": 1
+                    },
+                    {
+                        "id": 11,
+                        "name": "3",
+                        "port_number": 3,
+                        "type": "access",
+                        "vlan": 1
+                    },
+                    {
+                        "id": 12,
+                        "name": "4",
+                        "port_number": 4,
+                        "type": "access",
+                        "vlan": 1
+                    },
+                    {
+                        "id": 13,
+                        "name": "5",
+                        "port_number": 5,
+                        "type": "access",
+                        "vlan": 1
+                    },
+                    {
+                        "id": 14,
+                        "name": "6",
+                        "port_number": 6,
+                        "type": "access",
+                        "vlan": 1
+                    },
+                    {
+                        "id": 15,
+                        "name": "7",
+                        "port_number": 7,
+                        "type": "access",
+                        "vlan": 1
+                    },
+                    {
+                        "id": 16,
+                        "name": "8",
+                        "port_number": 8,
+                        "type": "access",
+                        "vlan": 1
+                    }
+                ],
+                "properties": {
+                    "name": "SW1"
+                },
+                "server_id": 3,
+                "type": "EthernetSwitch",
+                "x": 5.5,
+                "y": -206.0
+            },
+            {
+                "description": "Frame Relay switch",
+                "device_id": "3bb18be3-0692-47be-a98e-213fa5f1ba73",
+                "id": 5,
+                "label": {
+                    "color": "#ff000000",
+                    "font": "TypeWriter,10,-1,5,75,0,0,0,0,0",
+                    "text": "FR1",
+                    "x": 11.890625,
+                    "y": -25.0
+                },
+                "properties": {
+                    "name": "FR1",
+                    "mappings": {
+                      "1:101": "10:202"
+                    }
+                },
+                "server_id": 3,
+                "type": "FrameRelaySwitch",
+                "x": 294.5,
+                "y": -209.5
+            }
+        ],
+        "servers": [
+            {
+                "host": "127.0.0.1",
+                "id": 3,
+                "local": true,
+                "port": 3080,
+                "protocol": "http",
+                "vm": false
+            }
+        ]
+    },
+    "type": "topology",
+    "version": "1.5.1dev1"
+}
diff --git a/tests/topologies/1_5_docker_remote/after/1_5_docker_remote.gns3 b/tests/topologies/1_5_docker_remote/after/1_5_docker_remote.gns3
new file mode 100644
index 00000000..ddb7b6e1
--- /dev/null
+++ b/tests/topologies/1_5_docker_remote/after/1_5_docker_remote.gns3
@@ -0,0 +1,50 @@
+{
+    "name": "1_5_docker_remote",
+    "project_id": "8182b710-c6bf-4e51-8e2e-213cce952797",
+    "revision": 5,
+    "auto_start": false,
+    "topology": {
+        "computes": [
+            {
+                "compute_id": "ANYUUID",
+                "host": "127.0.0.1",
+                "name": "Remote 2",
+                "port": 8001,
+                "protocol": "http"
+            }
+        ],
+        "drawings": [],
+        "links": [],
+        "nodes": [
+            {
+                "compute_id": "ANYUUID",
+                "console": 6001,
+                "console_type": "telnet",
+                "label": {
+                    "rotation": 0,
+                    "style": "font-family: TypeWriter;font-size: 10;font-weight: bold;fill: #000000;fill-opacity: 1.0;",
+                    "text": "remote_busybox-1",
+                    "x": -20,
+                    "y": -25
+                },
+                "name": "remote_busybox-1",
+                "node_id": "d397ef5a-84f1-4b6b-9d44-671937ec7781",
+                "node_type": "docker",
+                "properties": {
+                    "adapters": 1,
+                    "aux": 6002,
+                    "console_http_path": "/",
+                    "console_http_port": 80,
+                    "console_resolution": "1024x768",
+                    "image": "busybox:latest"
+                },
+                "symbol": ":/symbols/docker_guest.svg",
+                "x": -53,
+                "y": -69,
+                "z": 1
+            }
+        ]
+    },
+    "type": "topology",
+    "version": "2.0.0dev1"
+}
diff --git a/tests/topologies/1_5_docker_remote/before/1_5_docker_remote.gns3 b/tests/topologies/1_5_docker_remote/before/1_5_docker_remote.gns3
index 365c04c0..57e835b8 100644
--- a/tests/topologies/1_5_docker_remote/before/1_5_docker_remote.gns3
+++ b/tests/topologies/1_5_docker_remote/before/1_5_docker_remote.gns3
@@ -1,7 +1,7 @@
 {
     "auto_start": false,
-    "name": "untitled",
-    "project_id": "926e5c9e-887c-41b2-9214-fbd5fb628fe8",
+    "name": "1_5_docker_remote",
+    "project_id": "8182b710-c6bf-4e51-8e2e-213cce952797",
     "revision": 4,
     "topology": {
         "nodes": [
@@ -55,4 +55,4 @@
     },
     "type": "topology",
     "version": "1.5.1dev1"
-}
\ No newline at end of file
+}
diff --git a/tests/topologies/1_5_drawing/after/1_5_drawing.gns3 b/tests/topologies/1_5_drawing/after/1_5_drawing.gns3
new file mode 100644
index 00000000..f13c8b9c
--- /dev/null
+++ b/tests/topologies/1_5_drawing/after/1_5_drawing.gns3
@@ -0,0 +1,40 @@
+{
+    "auto_start": false,
+    "name": "1_5_drawing",
+    "project_id": "ANYUUID",
+    "revision": 5,
+    "topology": {
+        "computes": [
+        ],
+        "drawings": [
+            {
+                "drawing_id": "ANYUUID",
+                "rotation": 0,
+                "svg": "<svg height=\"200\" width=\"200\"><ellipse cx=\"100\" cy=\"100\" fill=\"#ffffff\" fill-opacity=\"1.0\" rx=\"100\" ry=\"100\" stroke-dasharray=\"25, 25\" stroke=\"#000000\" stroke-width=\"2\" /></svg>",
+                "x": 179,
+                "y": -44,
+                "z": 0
+            },
+            {
+                "drawing_id": "ANYUUID",
+                "rotation": 0,
+                "svg": "<svg height=\"20\" width=\"40\"><text fill=\"#000000\" fill-opacity=\"1.0\" font-family=\"TypeWriter\" font-size=\"10\" font-weight=\"bold\" font-style=\"italic\">Test</text></svg>",
+                "x": -151,
+                "y": 93,
+                "z": 0
+            },
+            {
+                "drawing_id": "ANYUUID",
+                "rotation": 0,
+                "svg": "<svg height=\"100\" width=\"200\"><rect fill=\"#18ffff\" fill-opacity=\"1.0\" height=\"100\" width=\"200\" stroke=\"#c80000\" stroke-width=\"2\" /></svg>",
+                "x": -210,
+                "y": -108,
+                "z": 0
+            }
+        ],
+        "links": [],
+        "nodes": []
+    },
+    "type": "topology",
+    "version": "2.0.0dev1"
+}
diff --git a/tests/topologies/1_5_drawing/before/1_5_drawing.gns3 b/tests/topologies/1_5_drawing/before/1_5_drawing.gns3
new file mode 100644
index 00000000..c2a6be89
--- /dev/null
+++ b/tests/topologies/1_5_drawing/before/1_5_drawing.gns3
@@ -0,0 +1,38 @@
+{
+    "auto_start": false,
+    "name": "1_5_drawing",
+    "project_id": null,
+    "revision": 4,
+    "topology": {
+        "ellipses": [
+            {
+                "border_style": 2,
+                "height": 200.0,
+                "width": 200.0,
+                "x": 179.0,
+                "y": -44.0
+            }
+        ],
+        "notes": [
+            {
+                "color": "#ff000000",
+                "font": "TypeWriter,10,-1,5,75,1,0,0,0,0",
+                "text": "Test",
+                "x": -151.0,
+                "y": 93.0
+            }
+        ],
+        "rectangles": [
+            {
+                "border_color": "#c80000",
+                "color": "#18ffff",
+                "height": 100.0,
+                "width": 200.0,
+                "x": -210.0,
+                "y": -108.0
+            }
+        ]
+    },
+    "type": "topology",
+    "version": "1.5.1dev1"
+}
diff --git a/tests/topologies/1_5_dynamips/after/1_5_dynamips.gns3 b/tests/topologies/1_5_dynamips/after/1_5_dynamips.gns3
new file mode 100644
index 00000000..24624f99
--- /dev/null
+++ b/tests/topologies/1_5_dynamips/after/1_5_dynamips.gns3
@@ -0,0 +1,109 @@
+{
+    "auto_start": false,
+    "name": "1_5_dynamips",
+    "project_id": "62f389c0-f26d-43b7-ab29-e4d306b29c07",
+    "revision": 5,
+    "topology": {
+        "computes": [
+            {
+                "compute_id": "local",
+                "host": "127.0.0.1",
+                "name": "Local",
+                "port": 3080,
+                "protocol": "http"
+            }
+        ],
+        "drawings": [],
+        "links": [],
+        "nodes": [
+            {
+                "compute_id": "local",
+                "console": 5000,
+                "console_type": "telnet",
+                "label": {
+                    "rotation": 0,
+                    "style": "font-family: TypeWriter;font-size: 10;font-weight: bold;fill: #000000;fill-opacity: 1.0;",
+                    "text": "R1",
+                    "x": 22,
+                    "y": -25
+                },
+                "name": "R1",
+                "node_id": "11845dea-f175-495b-9fc5-bf20a2262016",
+                "node_type": "dynamips",
+                "properties": {
+                    "auto_delete_disks": true,
+                    "clock_divisor": 8,
+                    "disk0": 0,
+                    "disk1": 0,
+                    "dynamips_id": 1,
+                    "exec_area": 64,
+                    "idlemax": 500,
+                    "idlepc": "0x60aa1da0",
+                    "idlesleep": 30,
+                    "image": "c3745-adventerprisek9-mz.124-25d.image",
+                    "image_md5sum": "ddbaf74274822b50fa9670e10c75b08f",
+                    "iomem": 5,
+                    "mac_addr": "c401.6b0f.0000",
+                    "mmap": true,
+                    "nvram": 256,
+                    "platform": "c3745",
+                    "ram": 256,
+                    "slot0": "GT96100-FE",
+                    "sparsemem": true,
+                    "startup_config": "configs/i1_startup-config.cfg",
+                    "system_id": "FTX0945W0MY"
+                },
+                "symbol": ":/symbols/router.svg",
+                "x": -112,
+                "y": -46,
+                "z": 1
+            },
+            {
+                "compute_id": "local",
+                "console": 5001,
+                "console_type": "telnet",
+                "label": {
+                    "rotation": 0,
+                    "style": "font-family: TypeWriter;font-size: 10;font-weight: bold;fill: #000000;fill-opacity: 1.0;",
+                    "text": "ESW1",
+                    "x": 7,
+                    "y": -25
+                },
+                "name": "ESW1",
+                "node_id": "4478a968-72a1-4722-9039-db7561c717c4",
+                "node_type": "dynamips",
+                "properties": {
+                    "auto_delete_disks": false,
+                    "chassis": "3660",
+                    "clock_divisor": 4,
+                    "disk0": 1,
+                    "disk1": 0,
+                    "dynamips_id": 2,
+                    "exec_area": 64,
+                    "idlemax": 500,
+                    "idlepc": "0x6076e0b4",
+                    "idlesleep": 30,
+                    "image": "c3660-a3jk9s-mz.124-15.T14.image",
+                    "image_md5sum": "daed99f508fd42dbaacf711e560643ed",
+                    "iomem": 5,
+                    "mac_addr": "cc02.6b5c.0000",
+                    "mmap": true,
+                    "nvram": 256,
+                    "platform": "c3600",
+                    "ram": 192,
+                    "slot0": "Leopard-2FE",
+                    "slot1": "NM-16ESW",
+                    "sparsemem": true,
+                    "startup_config": "configs/i2_startup-config.cfg",
+                    "system_id": "FTX0945W0MY"
+                },
+                "symbol": ":/symbols/multilayer_switch.svg",
+                "x": 55,
+                "y": -76,
+                "z": 1
+            }
+        ]
+    },
+    "type": "topology",
+    "version": "2.0.0dev1"
+}
diff --git a/tests/topologies/1_5_dynamips/before/1_5_dynamips.gns3 b/tests/topologies/1_5_dynamips/before/1_5_dynamips.gns3
new file mode 100644
index 00000000..56b76f54
--- /dev/null
+++ b/tests/topologies/1_5_dynamips/before/1_5_dynamips.gns3
@@ -0,0 +1,231 @@
+{
+    "auto_start": false,
+    "name": "1_5_dynamips",
+    "project_id": "62f389c0-f26d-43b7-ab29-e4d306b29c07",
+    "revision": 4,
+    "topology": {
+        "nodes": [
+            {
+                "description": "Router c3745",
+                "dynamips_id": 1,
+                "id": 1,
+                "label": {
+                    "color": "#ff000000",
+                    "font": "TypeWriter,10,-1,5,75,0,0,0,0,0",
+                    "text": "R1",
+                    "x": 22.2578125,
+                    "y": -25.0
+                },
+                "ports": [
+                    {
+                        "adapter_number": 0,
+                        "id": 1,
+                        "name": "FastEthernet0/0",
+                        "port_number": 0
+                    },
+                    {
+                        "adapter_number": 0,
+                        "id": 2,
+                        "name": "FastEthernet0/1",
+                        "port_number": 1
+                    }
+                ],
+                "properties": {
+                    "auto_delete_disks": true,
+                    "clock_divisor": 8,
+                    "console": 5000,
+                    "disk0": 0,
+                    "disk1": 0,
+                    "exec_area": 64,
+                    "idlemax": 500,
+                    "idlepc": "0x60aa1da0",
+                    "idlesleep": 30,
+                    "image": "c3745-adventerprisek9-mz.124-25d.image",
+                    "image_md5sum": "ddbaf74274822b50fa9670e10c75b08f",
+                    "iomem": 5,
+                    "mac_addr": "c401.6b0f.0000",
+                    "mmap": true,
+                    "name": "R1",
+                    "nvram": 256,
+                    "platform": "c3745",
+                    "ram": 256,
+                    "slot0": "GT96100-FE",
+                    "sparsemem": true,
+                    "startup_config": "configs/i1_startup-config.cfg",
+                    "system_id": "FTX0945W0MY"
+                },
+                "server_id": 3,
+                "type": "C3745",
+                "vm_id": "11845dea-f175-495b-9fc5-bf20a2262016",
+                "x": -112.19595949289331,
+                "y": -46.04163056034261
+            },
+            {
+                "description": "Router c3600",
+                "dynamips_id": 2,
+                "id": 2,
+                "label": {
+                    "color": "#ff000000",
+                    "font": "TypeWriter,10,-1,5,75,0,0,0,0,0",
+                    "text": "ESW1",
+                    "x": 7.8359375,
+                    "y": -25.0
+                },
+                "ports": [
+                    {
+                        "adapter_number": 0,
+                        "id": 3,
+                        "name": "FastEthernet0/0",
+                        "port_number": 0
+                    },
+                    {
+                        "adapter_number": 0,
+                        "id": 4,
+                        "name": "FastEthernet0/1",
+                        "port_number": 1
+                    },
+                    {
+                        "adapter_number": 1,
+                        "id": 5,
+                        "name": "FastEthernet1/0",
+                        "port_number": 0
+                    },
+                    {
+                        "adapter_number": 1,
+                        "id": 6,
+                        "name": "FastEthernet1/1",
+                        "port_number": 1
+                    },
+                    {
+                        "adapter_number": 1,
+                        "id": 7,
+                        "name": "FastEthernet1/2",
+                        "port_number": 2
+                    },
+                    {
+                        "adapter_number": 1,
+                        "id": 8,
+                        "name": "FastEthernet1/3",
+                        "port_number": 3
+                    },
+                    {
+                        "adapter_number": 1,
+                        "id": 9,
+                        "name": "FastEthernet1/4",
+                        "port_number": 4
+                    },
+                    {
+                        "adapter_number": 1,
+                        "id": 10,
+                        "name": "FastEthernet1/5",
+                        "port_number": 5
+                    },
+                    {
+                        "adapter_number": 1,
+                        "id": 11,
+                        "name": "FastEthernet1/6",
+                        "port_number": 6
+                    },
+                    {
+                        "adapter_number": 1,
+                        "id": 12,
+                        "name": "FastEthernet1/7",
+                        "port_number": 7
+                    },
+                    {
+                        "adapter_number": 1,
+                        "id": 13,
+                        "name": "FastEthernet1/8",
+                        "port_number": 8
+                    },
+                    {
+                        "adapter_number": 1,
+                        "id": 14,
+                        "name": "FastEthernet1/9",
+                        "port_number": 9
+                    },
+                    {
+                        "adapter_number": 1,
+                        "id": 15,
+                        "name": "FastEthernet1/10",
+                        "port_number": 10
+                    },
+                    {
+                        "adapter_number": 1,
+                        "id": 16,
+                        "name": "FastEthernet1/11",
+                        "port_number": 11
+                    },
+                    {
+                        "adapter_number": 1,
+                        "id": 17,
+                        "name": "FastEthernet1/12",
+                        "port_number": 12
+                    },
+                    {
+                        "adapter_number": 1,
+                        "id": 18,
+                        "name": "FastEthernet1/13",
+                        "port_number": 13
+                    },
+                    {
+                        "adapter_number": 1,
+                        "id": 19,
+                        "name": "FastEthernet1/14",
+                        "port_number": 14
+                    },
+                    {
+                        "adapter_number": 1,
+                        "id": 20,
+                        "name": "FastEthernet1/15",
+                        "port_number": 15
+                    }
+                ],
+                "properties": {
+                    "auto_delete_disks": false,
+                    "chassis": "3660",
+                    "clock_divisor": 4,
+                    "console": 5001,
+                    "disk0": 1,
+                    "disk1": 0,
+                    "exec_area": 64,
+                    "idlemax": 500,
+                    "idlepc": "0x6076e0b4",
+                    "idlesleep": 30,
+                    "image": "c3660-a3jk9s-mz.124-15.T14.image",
+                    "image_md5sum": "daed99f508fd42dbaacf711e560643ed",
+                    "iomem": 5,
+                    "mac_addr": "cc02.6b5c.0000",
+                    "mmap": true,
+                    "name": "ESW1",
+                    "nvram": 256,
+                    "platform": "c3600",
+                    "ram": 192,
+                    "slot0": "Leopard-2FE",
+                    "slot1": "NM-16ESW",
+                    "sparsemem": true,
+                    "startup_config": "configs/i2_startup-config.cfg",
+                    "system_id": "FTX0945W0MY"
+                },
+                "server_id": 3,
+                "symbol": ":/symbols/multilayer_switch.svg",
+                "type": "C3600",
+                "vm_id": "4478a968-72a1-4722-9039-db7561c717c4",
+                "x": 55,
+                "y": -76
+            }
+        ],
+        "servers": [
+            {
+                "host": "127.0.0.1",
+                "id": 3,
+                "local": true,
+                "port": 3080,
+                "protocol": "http",
+                "vm": false
+            }
+        ]
+    },
+    "type": "topology",
+    "version": "1.5.1dev1"
+}
diff --git a/tests/topologies/1_5_qemu/after/testqemu.gns3 b/tests/topologies/1_5_qemu/after/testqemu.gns3
new file mode 100644
index 00000000..1d9bbad1
--- /dev/null
+++ b/tests/topologies/1_5_qemu/after/testqemu.gns3
@@ -0,0 +1,63 @@
+{
+    "name": "testqemu",
+    "project_id": "a3ca8a82-6b11-4c8e-b20d-c9e94286054c",
+    "revision": 5,
+    "auto_start": false,
+    "topology": {
+        "computes": [
+            {
+                "compute_id": "local",
+                "host": "127.0.0.1",
+                "name": "Local",
+                "port": 3080,
+                "protocol": "http"
+            }
+        ],
+        "drawings": [],
+        "links": [],
+        "nodes": [
+            {
+                "compute_id": "local",
+                "console": 5000,
+                "console_type": "telnet",
+                "label": {
+                    "rotation": 0,
+                    "style": "font-family: TypeWriter;font-size: 10;font-weight: bold;fill: #000000;fill-opacity: 1.0;",
+                    "text": "MicroCore-1",
+                    "x": -4,
+                    "y": -25
+                },
+                "name": "MicroCore-1",
+                "node_id": "426face4-7f73-436b-88fa-050e3ee101e9",
+                "node_type": "qemu",
+                "properties": {
+                    "acpi_shutdown": false,
+                    "adapter_type": "e1000",
+                    "adapters": 1,
+                    "boot_priority": "c",
+                    "cpu_throttling": 0,
+                    "cpus": 1,
+                    "hda_disk_image": "core-linux-6.4-internet-0.1.img",
+                    "hda_disk_image_md5sum": "8ebc5a6ec53a1c05b7aa101b5ceefe31",
+                    "hda_disk_interface": "ide",
+                    "hdb_disk_interface": "ide",
+                    "hdc_disk_interface": "ide",
+                    "hdd_disk_interface": "ide",
+                    "legacy_networking": false,
+                    "mac_address": "00:05:4c:01:e9:00",
+                    "options": "-nographic",
+                    "platform": "x86_64",
+                    "process_priority": "normal",
+                    "qemu_path": "/usr/local/bin/qemu-system-x86_64",
+                    "ram": 256
+                },
+                "symbol": ":/symbols/qemu_guest.svg",
+                "x": -88,
+                "y": -102,
+                "z": 1
+            }
+        ]
+    },
+    "type": "topology",
+    "version": "2.0.0dev1"
+}
diff --git a/tests/topologies/1_5_qemu/before/testqemu.gns3 b/tests/topologies/1_5_qemu/before/testqemu.gns3
new file mode 100644
index 00000000..696b18b9
--- /dev/null
+++ b/tests/topologies/1_5_qemu/before/testqemu.gns3
@@ -0,0 +1,72 @@
+{
+    "auto_start": false,
+    "name": "testqemu",
+    "project_id": "a3ca8a82-6b11-4c8e-b20d-c9e94286054c",
+    "revision": 4,
+    "topology": {
+        "nodes": [
+            {
+                "description": "QEMU VM",
+                "id": 1,
+                "label": {
+                    "color": "#ff000000",
+                    "font": "TypeWriter,10,-1,5,75,0,0,0,0,0",
+                    "text": "MicroCore-1",
+                    "x": -4.1875,
+                    "y": -25.0
+                },
+                "linked_clone": true,
+                "port_name_format": "Ethernet{0}",
+                "ports": [
+                    {
+                        "adapter_number": 0,
+                        "id": 1,
+                        "name": "Ethernet0",
+                        "port_number": 0
+                    }
+                ],
+                "properties": {
+                    "acpi_shutdown": false,
+                    "adapter_type": "e1000",
+                    "adapters": 1,
+                    "boot_priority": "c",
+                    "console": 5000,
+                    "console_type": "telnet",
+                    "cpu_throttling": 0,
+                    "cpus": 1,
+                    "hda_disk_image": "core-linux-6.4-internet-0.1.img",
+                    "hda_disk_image_md5sum": "8ebc5a6ec53a1c05b7aa101b5ceefe31",
+                    "hda_disk_interface": "ide",
+                    "hdb_disk_interface": "ide",
+                    "hdc_disk_interface": "ide",
+                    "hdd_disk_interface": "ide",
+                    "legacy_networking": false,
+                    "mac_address": "00:05:4c:01:e9:00",
+                    "name": "MicroCore-1",
+                    "options": "-nographic",
+                    "platform": "x86_64",
+                    "process_priority": "normal",
+                    "qemu_path": "/usr/local/bin/qemu-system-x86_64",
+                    "ram": 256
+                },
+                "server_id": 3,
+                "type": "QemuVM",
+                "vm_id": "426face4-7f73-436b-88fa-050e3ee101e9",
+                "x": -88.5,
+                "y": -102.5
+            }
+        ],
+        "servers": [
+            {
+                "host": "127.0.0.1",
+                "id": 3,
+                "local": true,
+                "port": 3080,
+                "protocol": "http",
+                "vm": false
+            }
+        ]
+    },
+    "type": "topology",
+    "version": "1.5.1dev1"
+}
\ No newline at end of file
diff --git a/tests/topologies/1_5_virtualbox/after/1_5_virtualbox.gns3 b/tests/topologies/1_5_virtualbox/after/1_5_virtualbox.gns3
new file mode 100644
index 00000000..0dd3675b
--- /dev/null
+++ b/tests/topologies/1_5_virtualbox/after/1_5_virtualbox.gns3
@@ -0,0 +1,52 @@
+{
+    "auto_start": false,
+    "name": "1_5_virtualbox",
+    "project_id": "bf00c459-05a5-45c0-950c-3f6150a20703",
+    "revision": 5,
+    "topology": {
+        "computes": [
+            {
+                "compute_id": "local",
+                "host": "127.0.0.1",
+                "name": "Local",
+                "port": 3080,
+                "protocol": "http"
+            }
+        ],
+        "drawings": [],
+        "links": [],
+        "nodes": [
+            {
+                "compute_id": "local",
+                "console": 5000,
+                "console_type": "telnet",
+                "label": {
+                    "rotation": 0,
+                    "style": "font-family: TypeWriter;font-size: 10;font-weight: bold;fill: #000000;fill-opacity: 1.0;",
+                    "text": "debian",
+                    "x": 11,
+                    "y": -25
+                },
+                "name": "debian",
+                "node_id": "af5fa728-85da-44f1-b17a-e99a65a7037e",
+                "node_type": "virtualbox",
+                "properties": {
+                    "acpi_shutdown": false,
+                    "adapter_type": "Intel PRO/1000 MT Desktop (82540EM)",
+                    "adapters": 1,
+                    "enable_remote_console": false,
+                    "headless": false,
+                    "ram": 512,
+                    "use_any_adapter": false,
+                    "vmname": "debian"
+                },
+                "symbol": ":/symbols/vbox_guest.svg",
+                "x": -48,
+                "y": -43,
+                "z": 1
+            }
+        ]
+    },
+    "type": "topology",
+    "version": "2.0.0dev1"
+}
diff --git a/tests/topologies/1_5_virtualbox/before/1_5_virtualbox.gns3 b/tests/topologies/1_5_virtualbox/before/1_5_virtualbox.gns3
new file mode 100644
index 00000000..290fb30a
--- /dev/null
+++ b/tests/topologies/1_5_virtualbox/before/1_5_virtualbox.gns3
@@ -0,0 +1,60 @@
+{
+    "auto_start": false,
+    "name": "1_5_virtualbox",
+    "project_id": "bf00c459-05a5-45c0-950c-3f6150a20703",
+    "revision": 4,
+    "topology": {
+        "nodes": [
+            {
+                "description": "VirtualBox VM",
+                "id": 1,
+                "label": {
+                    "color": "#ff000000",
+                    "font": "TypeWriter,10,-1,5,75,0,0,0,0,0",
+                    "text": "debian",
+                    "x": 11.1015625,
+                    "y": -25.0
+                },
+                "linked_clone": false,
+                "port_name_format": "Ethernet{0}",
+                "ports": [
+                    {
+                        "adapter_number": 0,
+                        "id": 1,
+                        "name": "Ethernet0",
+                        "port_number": 0
+                    }
+                ],
+                "properties": {
+                    "acpi_shutdown": false,
+                    "adapter_type": "Intel PRO/1000 MT Desktop (82540EM)",
+                    "adapters": 1,
+                    "console": 5000,
+                    "enable_remote_console": false,
+                    "headless": false,
+                    "name": "debian",
+                    "ram": 512,
+                    "use_any_adapter": false,
+                    "vmname": "debian"
+                },
+                "server_id": 3,
+                "type": "VirtualBoxVM",
+                "vm_id": "af5fa728-85da-44f1-b17a-e99a65a7037e",
+                "x": -48.5,
+                "y": -43.5
+            }
+        ],
+        "servers": [
+            {
+                "host": "127.0.0.1",
+                "id": 3,
+                "local": true,
+                "port": 3080,
+                "protocol": "http",
+                "vm": false
+            }
+        ]
+    },
+    "type": "topology",
+    "version": "1.5.1dev1"
+}
diff --git a/tests/topologies/1_5_vmware/after/1_5_vmware.gns3 b/tests/topologies/1_5_vmware/after/1_5_vmware.gns3
new file mode 100644
index 00000000..bd75c1c8
--- /dev/null
+++ b/tests/topologies/1_5_vmware/after/1_5_vmware.gns3
@@ -0,0 +1,51 @@
+{
+    "name": "1_5_vmware",
+    "project_id": "4be1f3e5-76e5-4223-93b7-f37f4091549e",
+    "revision": 5,
+    "auto_start": false,
+    "topology": {
+        "computes": [
+            {
+                "compute_id": "local",
+                "host": "127.0.0.1",
+                "name": "Local",
+                "port": 3080,
+                "protocol": "http"
+            }
+        ],
+        "drawings": [],
+        "links": [],
+        "nodes": [
+            {
+                "compute_id": "local",
+                "console": 2000,
+                "console_type": "telnet",
+                "label": {
+                    "rotation": 0,
+                    "style": "font-family: TypeWriter;font-size: 10;font-weight: bold;fill: #000000;fill-opacity: 1.0;",
+                    "text": "GNS3 VM",
+                    "x": 5,
+                    "y": -25
+                },
+                "name": "GNS3 VM",
+                "node_id": "9e06d0ce-e8df-4f38-bdfa-7c83e19a91c1",
+                "node_type": "vmware",
+                "properties": {
+                    "acpi_shutdown": false,
+                    "adapter_type": "e1000",
+                    "adapters": 1,
+                    "enable_remote_console": false,
+                    "headless": false,
+                    "use_any_adapter": false,
+                    "vmx_path": "/Users/bob/Documents/Virtual Machines.localized/GNS3 VM.vmwarevm/GNS3 VM.vmx"
+                },
+                "symbol": ":/symbols/vmware_guest.svg",
+                "x": 7,
+                "y": 8,
+                "z": 1
+            }
+        ]
+    },
+    "type": "topology",
+    "version": "2.0.0dev1"
+}
diff --git a/tests/topologies/1_5_vmware/before/1_5_vmware.gns3 b/tests/topologies/1_5_vmware/before/1_5_vmware.gns3
new file mode 100644
index 00000000..77c1c976
--- /dev/null
+++ b/tests/topologies/1_5_vmware/before/1_5_vmware.gns3
@@ -0,0 +1,60 @@
+{
+    "auto_start": false,
+    "name": "1_5_vmware",
+    "project_id": "4be1f3e5-76e5-4223-93b7-f37f4091549e",
+    "revision": 4,
+    "topology": {
+        "nodes": [
+            {
+                "description": "VMware VM",
+                "id": 1,
+                "label": {
+                    "color": "#ff000000",
+                    "font": "TypeWriter,10,-1,5,75,0,0,0,0,0",
+                    "text": "GNS3 VM",
+                    "x": 5.125,
+                    "y": -25.0
+                },
+                "linked_clone": false,
+                "port_name_format": "Ethernet{0}",
+                "ports": [
+                    {
+                        "adapter_number": 0,
+                        "id": 1,
+                        "name": "Ethernet0",
+                        "port_number": 0
+                    }
+                ],
+                "properties": {
+                    "acpi_shutdown": false,
+                    "adapter_type": "e1000",
+                    "adapters": 1,
+                    "console": 2000,
+                    "enable_remote_console": false,
+                    "headless": false,
+                    "name": "GNS3 VM",
+                    "use_any_adapter": false,
+                    "use_ubridge": true,
+                    "vmx_path": "/Users/bob/Documents/Virtual Machines.localized/GNS3 VM.vmwarevm/GNS3 VM.vmx"
+                },
+                "server_id": 3,
+                "type": "VMwareVM",
+                "vm_id": "9e06d0ce-e8df-4f38-bdfa-7c83e19a91c1",
+                "x": 7,
+                "y": 8
+            }
+        ],
+        "servers": [
+            {
+                "host": "127.0.0.1",
+                "id": 3,
+                "local": true,
+                "port": 3080,
+                "protocol": "http",
+                "vm": false
+            }
+        ]
+    },
+    "type": "topology",
+    "version": "1.5.1dev1"
+}
diff --git a/tests/topologies/1_5_vpcs/after/1_5_vpcs.gns3 b/tests/topologies/1_5_vpcs/after/1_5_vpcs.gns3
new file mode 100644
index 00000000..3a26ee51
--- /dev/null
+++ b/tests/topologies/1_5_vpcs/after/1_5_vpcs.gns3
@@ -0,0 +1,83 @@
+{
+    "auto_start": false,
+    "name": "1_5_vpcs",
+    "project_id": "62fc7a04-ae65-4003-a9e6-a046b1996f0e",
+    "revision": 5,
+    "topology": {
+        "computes": [
+            {
+                "compute_id": "local",
+                "host": "127.0.0.1",
+                "name": "Local",
+                "port": 3080,
+                "protocol": "http"
+            }
+        ],
+        "drawings": [],
+        "links": [
+            {
+                "link_id": "ANYUUID",
+                "nodes": [
+                    {
+                        "adapter_number": 0,
+                        "node_id": "b570a150-c09f-47d9-8d32-9ca5b03234d6",
+                        "port_number": 0
+                    },
+                    {
+                        "adapter_number": 0,
+                        "node_id": "0fd3dd4d-dc93-4a04-a9b9-7396a9e22e8b",
+                        "port_number": 0
+                    }
+                ]
+            }
+        ],
+        "nodes": [
+            {
+                "compute_id": "local",
+                "console": 5000,
+                "console_type": "telnet",
+                "label": {
+                    "rotation": 0,
+                    "style": "font-family: TypeWriter;font-size: 10;font-weight: bold;fill: #000000;fill-opacity: 1.0;",
+                    "text": "PC1",
+                    "x": 18,
+                    "y": -25
+                },
+                "name": "PC1",
+                "node_id": "0fd3dd4d-dc93-4a04-a9b9-7396a9e22e8b",
+                "node_type": "vpcs",
+                "properties": {
+                    "startup_script_path": "startup.vpc"
+                },
+                "symbol": ":/symbols/vpcs_guest.svg",
+                "x": -87,
+                "y": -65,
+                "z": 1
+            },
+            {
+                "compute_id": "local",
+                "console": 5001,
+                "console_type": "telnet",
+                "label": {
+                    "rotation": 0,
+                    "style": "font-family: TypeWriter;font-size: 10;font-weight: bold;fill: #000000;fill-opacity: 1.0;",
+                    "text": "PC2",
+                    "x": 18,
+                    "y": -25
+                },
+                "name": "PC2",
+                "node_id": "b570a150-c09f-47d9-8d32-9ca5b03234d6",
+                "node_type": "vpcs",
+                "properties": {
+                    "startup_script_path": "startup.vpc"
+                },
+                "symbol": ":/symbols/vpcs_guest.svg",
+                "x": 123,
+                "y": -65,
+                "z": 1
+            }
+        ]
+    },
+    "type": "topology",
+    "version": "ANYSTR"
+}
diff --git a/tests/topologies/1_5_vpcs/after/project-files/vpcs/0fd3dd4d-dc93-4a04-a9b9-7396a9e22e8b/startup.vpc b/tests/topologies/1_5_vpcs/after/project-files/vpcs/0fd3dd4d-dc93-4a04-a9b9-7396a9e22e8b/startup.vpc
new file mode 100644
index 00000000..d46a9c6f
--- /dev/null
+++ b/tests/topologies/1_5_vpcs/after/project-files/vpcs/0fd3dd4d-dc93-4a04-a9b9-7396a9e22e8b/startup.vpc
@@ -0,0 +1 @@
+set pcname PC1
diff --git a/tests/topologies/1_5_vpcs/after/project-files/vpcs/b570a150-c09f-47d9-8d32-9ca5b03234d6/startup.vpc b/tests/topologies/1_5_vpcs/after/project-files/vpcs/b570a150-c09f-47d9-8d32-9ca5b03234d6/startup.vpc
new file mode 100644
index 00000000..062dba6a
--- /dev/null
+++ b/tests/topologies/1_5_vpcs/after/project-files/vpcs/b570a150-c09f-47d9-8d32-9ca5b03234d6/startup.vpc
@@ -0,0 +1 @@
+set pcname PC2
diff --git a/tests/topologies/1_5_vpcs/before/1_5_vpcs.gns3 b/tests/topologies/1_5_vpcs/before/1_5_vpcs.gns3
new file mode 100644
index 00000000..65652b13
--- /dev/null
+++ b/tests/topologies/1_5_vpcs/before/1_5_vpcs.gns3
@@ -0,0 +1,98 @@
+{
+    "auto_start": false,
+    "name": "1_5_vpcs",
+    "project_id": "62fc7a04-ae65-4003-a9e6-a046b1996f0e",
+    "revision": 4,
+    "topology": {
+        "links": [
+            {
+                "description": "Link from PC2 port Ethernet0 to PC1 port Ethernet0",
+                "destination_node_id": 1,
+                "destination_port_id": 1,
+                "id": 1,
+                "source_node_id": 2,
+                "source_port_id": 2
+            }
+        ],
+        "nodes": [
+            {
+                "description": "VPCS device",
+                "id": 1,
+                "label": {
+                    "color": "#ff000000",
+                    "font": "TypeWriter,10,-1,5,75,0,0,0,0,0",
+                    "text": "PC1",
+                    "x": 18.5859375,
+                    "y": -25.0
+                },
+                "ports": [
+                    {
+                        "adapter_number": 0,
+                        "description": "connected to PC2 on port Ethernet0",
+                        "id": 1,
+                        "link_id": 1,
+                        "name": "Ethernet0",
+                        "nio": "NIO_UDP",
+                        "port_number": 0
+                    }
+                ],
+                "properties": {
+                    "console": 5000,
+                    "name": "PC1",
+                    "startup_script_path": "startup.vpc"
+                },
+                "server_id": 3,
+                "symbol": ":/symbols/vpcs_guest.svg",
+                "type": "VPCSDevice",
+                "vm_id": "0fd3dd4d-dc93-4a04-a9b9-7396a9e22e8b",
+                "x": -87.5,
+                "y": -65.5
+            },
+            {
+                "description": "VPCS device",
+                "id": 2,
+                "label": {
+                    "color": "#ff000000",
+                    "font": "TypeWriter,10,-1,5,75,0,0,0,0,0",
+                    "text": "PC2",
+                    "x": 18.5859375,
+                    "y": -25.0
+                },
+                "ports": [
+                    {
+                        "adapter_number": 0,
+                        "description": "connected to PC1 on port Ethernet0",
+                        "id": 2,
+                        "link_id": 1,
+                        "name": "Ethernet0",
+                        "nio": "NIO_UDP",
+                        "port_number": 0
+                    }
+                ],
+                "properties": {
+                    "console": 5001,
+                    "name": "PC2",
+                    "startup_script_path": "startup.vpc"
+                },
+                "server_id": 3,
+                "symbol": ":/symbols/vpcs_guest.svg",
+                "type": "VPCSDevice",
+                "vm_id": "b570a150-c09f-47d9-8d32-9ca5b03234d6",
+                "x": 123.5,
+                "y": -65.5
+            }
+        ],
+        "servers": [
+            {
+                "host": "127.0.0.1",
+                "id": 3,
+                "local": true,
+                "port": 3080,
+                "protocol": "http",
+                "vm": false
+            }
+        ]
+    },
+    "type": "topology",
+    "version": "1.5.1dev1"
+}
\ No newline at end of file
diff --git a/tests/topologies/1_5_vpcs/before/project-files/vpcs/0fd3dd4d-dc93-4a04-a9b9-7396a9e22e8b/startup.vpc b/tests/topologies/1_5_vpcs/before/project-files/vpcs/0fd3dd4d-dc93-4a04-a9b9-7396a9e22e8b/startup.vpc
new file mode 100644
index 00000000..d46a9c6f
--- /dev/null
+++ b/tests/topologies/1_5_vpcs/before/project-files/vpcs/0fd3dd4d-dc93-4a04-a9b9-7396a9e22e8b/startup.vpc
@@ -0,0 +1 @@
+set pcname PC1
diff --git a/tests/topologies/1_5_vpcs/before/project-files/vpcs/b570a150-c09f-47d9-8d32-9ca5b03234d6/startup.vpc b/tests/topologies/1_5_vpcs/before/project-files/vpcs/b570a150-c09f-47d9-8d32-9ca5b03234d6/startup.vpc
new file mode 100644
index 00000000..062dba6a
--- /dev/null
+++ b/tests/topologies/1_5_vpcs/before/project-files/vpcs/b570a150-c09f-47d9-8d32-9ca5b03234d6/startup.vpc
@@ -0,0 +1 @@
+set pcname PC2
diff --git a/tests/topologies/README.rst b/tests/topologies/README.rst
new file mode 100644
index 00000000..d804f757
--- /dev/null
+++ b/tests/topologies/README.rst
@@ -0,0 +1,30 @@
+This directories contain topologies made for previous version of GNS3
+
+Each directory is a GNS3 project. You have two directory inside:
+* before 
+* after
+
+Before is the state of the project before conversion and after
+is the reference for checking if conversion is a success.
+
+To check if file are the same we check the file size except
+for .gns3
+
+.gns3 check
+###########
+
+The .gns3 json is loaded and compare to the reference project.
+
+You have some special value in the after project:
+* "ANYSTR" allow for any string to match
+* "ANYUUID" allow for any uuid to match
+
+
+Run the tests
+###############
+
+You can run the tests with:
+
+.. code:: bash
+
+    py.test -vv -x tests/test_topologies.py